METHOD FOR RECYCLING WRAPPED COMPLEX COPPER OXIDE ORES

WIPO Patent Application WO/2018/161653

A1

A method for recycling wrapped complex copper oxide ores. A wrapped copper oxide ore which is difficult to recycle by floatation and has a low direct acid leaching rate is subjected to a combination of vulcanization, xanthate, fatty acid salt, and hydroximic acid to float free copper oxide, ferrous and biotite ores wrapping a copper ore in ores are recycled by magnetic separation, and a large amount of low-grade copper-containing tailings are separated. Copper resources in a rough concentrate containing wrapped copper are recycled by high-temperature pressurizing, stirring, leaching and intensifying, ore pulp is leached out at high temperature and is mixed with low-grade copper-containing tailings to continue leaching by waste heat and waste acid to obtain the copper ore in tailings, the wrapped copper oxide ores which cannot be recycled by flotation directly and acid leaching directly are efficiently recycled. The technical difficulties of processing and using of wrapped complex copper oxide ore resources are economically and effectively resolved.

WEN SHUMING (CN)
LIU YUANYUAN (CN)
ZHU JINGHE (CN)
HUANG CAOMING (CN)
LIU DAN (CN)
DENG JIUSHUAI (CN)
SHEN HAIYING (CN)
WANG YIJIE (CN)
CHEN YU (CN)
BAI XU (CN)
ZHANG QIAN (CN)

PCT/CN2017/114280

September 13, 2018

December 01, 2017

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UNIV KUNMING SCIENCE & TECHNOLOGY (CN)
CHINA NONFERROUS METAL MINING GROUP (CN)

B03B7/00; C22B15/00

CN106944244A	2017-07-14
CN104815746A	2015-08-05
CN102688808A	2012-09-26
CN101831559A	2010-09-15
CN102266818A	2011-12-07
CN105413854A	2016-03-23
JP2012139609A	2012-07-26

KUNMING ZHENGYUAN PATENT & TRADEMARK AGENCY CO. LTD (CN)

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